Estes Saturn V #2157 buld thread

[bobbyg23]

Mail call. Now I can start the rebuild of the upper section.

 

[ToneDeafJunior]

Mail call. Now I can start the rebuild of the upper section.

I'm enjoying watching this thread Bobby. I was in my office when I reached your flight video. Said out loud, "oh no" when the rocket crashed. I felt so bad. Happy that your are quickly rebuilding it.

 

[bobbyg23]

I'm enjoying watching this thread Bobby. I was in my office when I reached your flight video. Said out loud, "oh no" when the rocket crashed. I felt so bad. Happy that your are quickly rebuilding it.

Thank you. It won't be 100% as good as new but it will pass the 10' test.

 

[AfterBurners]

Oh it is on.

Like Donkey Kong??

 

[AfterBurners]

What model # is this #2157 or #1969? I can never stay on top of them. I want to build one, so which model # is currently available and what is the difference between the two? Is one better than other or easier to build?

 

[AfterBurners]

Thanks. I am waiting on some printed fairings from boyce aerospace. I was hoping they would be here today, but the tracking shows Monday now. Darn.

Don't forget with this COVID-19 stuff its taking longer

 

[bobbyg23]

What model # is this #2157 or #1969? I can never stay on top of them. I want to build one, so which model # is currently available and what is the difference between the two? Is one better than other or easier to build?

This is the 2157 limited edition one. 1969 is the newest version but not available for purchase. Sounds like they will be releasing a new. Version sometime soon.

 

[bobbyg23]

Don'y forget with this COVID-19 stuff its taking longer

They made it in 3 working days, I just procrastinated too much. Lol

 

[AfterBurners]

This is the 2157 limited edition one. 1969 is the newest version but not available for purchase. Sounds like they will be releasing a new. Version sometime soon.

So many versions hard to keep track. Do you like either one more than other? If you had a choice?

 

[neil_w]

So many versions hard to keep track. Do you like either one more than other? If you had a choice?

Everything I ever saw suggested that 1969 was improved in a number of ways.

 

[AfterBurners]

Everything I ever saw suggested that 1969 was improved in a number of ways.

And the kit is currently unavailable correct?

 

[neil_w]

Yes, unfortunately. Discontinued and seems to be sold out everywhere.

 

[AfterBurners]

Yes, unfortunately. Discontinued and seems to be sold out everywhere.

I wonder why that is? They have a really good kit with improvements and then they discontinue it go figure? I wonder if the newest version that will be out next I wonder if it will share some of the same characteristics as the 1969 kit?

 

[kuririn]

If I remember what I read correctly it will be a #1969 kit with a Skylab option.

 

[kuririn]

See the pic in Post #1 in this thread:
https://www.rocketryforum.com/threads/narcon-2020-estes-skylab-and-new-astrocam.158095/#post-1973014

 

[ToneDeafJunior]

Thank you. It won't be 100% as good as new but it will pass the 10' test.

I darted my SV a few weeks ago and then decided to make a Skylab... Won't fly again but not a total loss.

 

[bobbyg23]

I am doing it a little differently than planned. I was just going to use the coupler on the inside of the tube but couldn't get it in far enough to work so I cut the tube and got another bt80 to fix the crushed part. The upper wrap came off in 1 piece so I can reuse that

 

[bobbyg23]

Got some paint on and shaped the nosecone to fit.

 

[bobbyg23]

I darted my SV a few weeks ago and then decided to make a Skylab... Won't fly again but not a total loss.View attachment 420951 View attachment 420952

Did you have to add nose weight and what engine were you flying it on?

 

[ToneDeafJunior]

Did you have to add nose weight and what engine were you flying it on?

It flew several times before. Yes. I had too much nose weight and flew it on an Estes E12-4. Should have used the E30.

 

[James Duffy]

Yes, unfortunately. Discontinued and seems to be sold out everywhere.

King's Hobby had one in stock when I was there this past weekend. Great people there and they ship, give them a call.

https://kingshobby.com
James

 

[bobbyg23]

Pretty much ready to go.

 

[kuririn]

Good job on the reconstruction. Man you work fast.
Erockets has a balsa capsule with the right shape here, if you're interested.
https://www.erockets.biz/semroc-balsa-nose-cone-bt-58-1-2-capsule-sem-bnc-58ap/

 

[bobbyg23]

Good job on the reconstruction. Man you work fast.
Erockets has a balsa capsule with the right shape here, if you're interested.
https://www.erockets.biz/semroc-balsa-nose-cone-bt-58-1-2-capsule-sem-bnc-58ap/

Thanks for that link. I just picked up what I could find at the local hobby shop for now. All they had was a bt60 so I had to sand it down a bit.

 

[bobbyg23]

I think I figured out part of the problem. The boyce fins are smaller than the stock ones. I will add the stock ones over the top to increase fin area.

 

[Nytrunner]

Boyce fins are likely true scale and Estes upsized theirs for stability

 

[bobbyg23]

Boyce fins are likely true scale and Estes upsized theirs for stability

I wish I would have known that before. Here is the size difference. I will add the stock ones over the boyce ones.

 

[bobbyg23]

After putting that into open rocket, the boyce fins move the cp forward by about 6 inches!!

 

[Nytrunner]

After putting that into open rocket, the boyce fins move the cp forward by about 6 inches!!

The Sat5 was never supposed to be a completely passively stabilized rocket. Its the big problem with scale missiles too

 

[bobbyg23]

The Sat5 was never supposed to be a completely passively stabilized rocket. Its the big problem with scale missiles too

True. I will put the stock fins over the boyce ones and get some different engines. Probably E30-4